Two computer scientists in Israel say a bitcoin transaction now worth more than $1 million suggests a possible link between a creator of the virtual currency and Ross William Ulbricht, the 29-year-old accused of running the Silk Road underground online marketplace. The 1,000-bitcoin transfer was found during an analysis of the movement of the Silk Road's bitcoins, according to a forthcoming research paper written by Adi Shamir and Dorit Ron of the Weizmann Institute of Science.